Finding the Fourth Proportional to 117,589,942.55, 162,265,697.28 and 64,670,376.37

Step by Step Solution

1. Step 1: Write the proportion equation
   117,589,942.55 : 162,265,697.28 = 64,670,376.37 : x
2. Step 2: Convert to fraction form
   117,589,942.55/162,265,697.28 = 64,670,376.37/x
3. Step 3: Cross multiply
   117,589,942.55x = 162,265,697.28 × 64,670,376.37
4. Step 4: Simplify right side
   117,589,942.55x = 10,493,783,714,892,068
5. Step 5: Solve for x
   x = 10,493,783,714,892,068/117,589,942.55
6. Step 6: Final answer
   x = 89,240,486.79